Coating-machine.



wi. M( JEWETT.

comme. MACHINE.

APPLICATION FILED NOV- 2 1916.

Patented Sept. 4,1917.

3 SHEETS-SHEET l.

INVENTOR WITNEssES v ATTORNEY M. M. JEWETT. comme MACHINE.

AFPIICIION FILED NOV. 2. 1.916.

Patented Sept. 4, 1917.

INVENTOR vATTORNEY 3 SHEETS-SHEET 2.

Pliy V WIT an ran n n "litigi .llh

il n i -r "comme IVIURRIT 1li. JEWETT, OF 'CO.RNII\TG, NE'V YURK;

CATINGJVIACHINE.

...mmm-...0.

i retienen.

Application inea november e, 191e.

Toall whom t may concern:

f Be it known that I, MUnRiT M. Jnwn'r'r, a citizen of the United States, residing (lorning, in theI count-y of Steuben and State ot' New York, have invented certain new" The primary object ot' the invention is to provide a machine by the use of whicliithe nioistening and coating of candies or marshinallows is wholly automatic, and wherein the articles to be treated are evenly coated 4upon all or their surfaces. A further object ot' the inveiritionis to provide a mechanism ot thistcharacter wherein the coating material is economized; and wherein such .material is prevented from becoming lumpy during the operation. A still further object resides in the provision of a mechanism ot' this character by means ot' which the coating operation is carried on in a sanitary manner. i up Still further objects'resid in constructing a mechanism of this character and for the purposes set forth which is featured by the laelt ot' complicated or intricate parts;

which may be quicklyfend easily cleaned or repaired when required; which requires but 'a small amount of power for its, operation; which requires no attention during the operation; and which combines eliciency with 'simplicity of construction.

With these objects in view, together with others which will appear as the description proceeds, `the invention resides in the novel formation, combination, and arrangement of parts, all as will be described more fully hereinafter, described in the drawings, and particularly pointed out'in the claims.

In the` drawings `Figure 1 isa side elevation of a coating machine constructed in accordance with` the invention Fig. 2 is an enlarged longitudinal sec tional view taken through the coating machine; and

Specification of Letters Patent.

'ing` wheels 13.

lPatented Sept. el, Milt/t serial No. 129,20.'

Figb 3 is an end view partly in section, of the coating;` machine.

The invention consists generally in the arrangement oi a conveyer within a drum or container, the conveyor being; adapted to carry the articles to be coated through the drum, while the drum is equipped with mechanism for directing coating inater'al upon the articles duringr their passage through the saine. lf he conveyer is equipped with niean's for turning,l or 'tunibling' the articles while travelii'ig, so as to expose all sides to the coating; material..

ln carrying` out the invention, a suitable frame or support l() is pioi'f'ided, and upon which the mechanism for coating' the articles is positioned. Rotatably mounted upon the frainewlOand in spaced parallel relation are shafts 11 and l2, to which are allixed support- One of the shafts is provided with. a pulley ll, over which a belt l5 passes for transmitting` rotary movement to the shaft?V lhe belt may be passed over a pulley upon a suitable power shaft, not shown. Secured upon the shaft l2 preferably an Y' even distance between the supporting wheels lisa near 1G.

The drum used in carrying1 out the inven tion is indicated at 17, andl has traekways 1S passing around the saine adjacent the ends thereof, and in which the supporting rollers or -wheels 13 are adapted to engage to bear the weight of the drum and to permit of the latter rotating. lt will be observed that the flanges on the trackways are so arranged as to prevent sliding movement of the drum upon the supporting' wheels. The

drum is also equipped with an annular rack4 19, which' is eiuneshed with the teeth of the gear 16. As the shaft 12 is driven by the gli belt 15, it is apparent-that the drum 17 will, 1

by reason of the gear and rack lil- 19, rotate upon the support or frame, and by rca-1 son of the fact that the drum is supported by the supporting wheels 13, the said drum may be rotated with the expenditure of but a relatively small amount of power. The ends of the drum are provided wit relatively large openings, which are closed by heads 20. These heads are formed `of sectional plates as shown, the edges of which are provided with flanges 22 to engage behind the edges of their respective openings upon the interior of the drum. The heads do not rotate with the drum, but are hel stationary by means of brackets 23 upon the frame or support l0. The flanged construction of the head permits of the drum rotating relative to the heads without a great amount of friction, and yet the said drum is rendered practically air tight. The head at the forward end of the drum as well as at the rear is provided with guides 24;, with- 1n which a slidable gate 25 is arranged, the said gates being adapted to close feed openings in the head. Through these openings,

sugar, cocoanut, or other coating material may be introduced to the interior of the drum.

The conveyer for carrying the articles to be coated to the drum is shown more clearly Vin Figs. 2v and 3 of the drawings, and comprises an elongated cylinder or drum. This cylinder has its ends formed of sheet metal, while vthe intermediate portion is of mesh indicated at 26. The open work or mesh portion of the cylinder is of substantially the same length as the drum, and the cylinder is disposed within the drum at an angle to the axis of the latter. The metallic ends of the cylinder protrude beyond the extremities of the drum, andproject through suitable openings formed in the heads 20 of the drum. Posts Q7' are secured upon the frame l0 and project up wardly therefrom beyond the ends of the drum, and these posts carry supporting pulley and belt arrangement is such that the cylinder will rotate in a direction opposite 'to that of the drum 17.

Arranged within the cylinder and extending substantially throughout the length of 'the same, is a spiral member or worm 33. This worm is'xed to the cylinder so as to travel therewith7 and prevents the articles 'conveyed by the cylinder from passing too rapidly through the same, and also assists in tumbling or turning the articles during rotation of the cylinder. VA spout 34 may be provided at the lower or forward open end' ofthe cylinder, to guide thearticles delivcred :from the said cylinder to direct them into a pan or receptacle placed beneath the spout for catching the finished or coated candies. l

. rear end of the drum.

.in the same.

As a means for keeping the coating inaterial thoroughly vagitated during the oper ation of the machine, to prevent the material from becoming lumpy. and for conveying this pulverized material into the conveyer or cylinder, the inner annular' wall of the drum 1T is provided with a plurality of spaced pockets, indicated at 35 in Fig. 3 of the drawings. These pockets may be provided by securing anumber of plates 36 to the annular wall of the drum in spaced relation and around the periphery of the Same. The plates are inclined slightly in the direction of rotation of the drum, and are secured to the wall of the drum at a slight angle to the axis of the latter. These plates are disposed downwardly toward the rear end of the drum, so that vas the said plates move upwardly as the drum rotates, fluent coating material such as sugar, cocoanut, or the like, will gravitate toward the As the plates reach the upper limit of their travel, the matter held thereby will lf {ravitate upon the conveyer or cylinder passing substantially centrally through the drum. To insure the coating material being directed into theV foraminous portion 26 of the cylinder, guide plates 37 are disposed longitudinally Within the drum and upon opposite sides ofV the cylinder. These plates are secured at their extremities to the heads 20, and form divergent side walls of hopper-like formation'.

In operation, the coating material is introduced to the interior of the drum throughA the doors or openings The candies or articles to be coated are, atter the machinery for operating the drum and cylinder has been started, introduced to the interior of the conveyer or cylinder at the upper rearward end ofthe latter. The articles if not of an inherent sticky nature, must be dipped or moistened prior to being deposited in the cylinder, so that -the coating-materialI will readily adhere' thereto. As the cylinder rotates. the articles are tumbled, and gradu- A ally work downwardly toward the forward or surfaces of the articles to the coating ma! terial directlythro'ugh the foraminous wall. The drum rotates in the direction indicated by the arrow in Fig. 3, and the coating material will be carried 'in the pocketsupwardly until the pockets'are inverted, where* upon the material will be deposited in the hopper formed by the plates 37 arranged in divergent relation within the drum. The

material sifts through the foraminous'wall y,

of the conveyer and strikes the articles With- Thc articles are thus inti- A' mately associated with the coating material. By reason of the fact that the rotating cylinder or conveyeivincliiies downwardly to` ward the forward end of thedi'iim, the coat ing material will be carried by the said cylinder toward the forward end of the drum, and to return the material to the rear end of the drum the plates or blades 36 `forming the pockets upon the inner periphery of the drum are disposed downwardly in vtheir upward travel toward the rear end of the d-ruin. By thus arrangingthc pockets, the bulk of the material conveyed thereby is directed into the hopper adjacent the rear end of the drum.

The coated articles arel discharged from the cylinder at the lowermost or forward end of the latter, and may be collected in suitable receptacles.

l have described the drum and conveyer in the present disclosure as being of cylin drical formation, however, it will be understood that the invention need not be limited to these details. It is also obvious that the cylinder may be of a continuous length of sheet metal, provided with openings to permit of the introduction ofthe coating material. `Other means also may be provided for supporting the drum and the conveyer.

While the present disclosure `is that of what I believe to be the preferred embodiment of the invention, it is to be understood that the invention is not limited thereto, but i that various` changes may be made in the construction, arrangement and proportion of parts, without departing from the scope of the invention, as delined in the appended claims. v

l/Vhat is claimedis l. In a coating machine, a drum adapted to contain a coating material, means for conveying the articles to be coated through said drinn, and means on said drum for conveying the vcoating material from the bottom to the top and to oneV end thercot' and directing the same into the path traversed by said articles.

2. In a coating machine, a drum adapted to contain a coating material, a hopper in said drum, means for conveying the articles to be coated beneath the open end of said hopper, and means for conveying the coating -material from the bottom of said drum to bottom o the top'vand to one end thereof depositing the saine in said hopper.

3. in a. coating machine, a drum adapted to contain a coating material, a conveyor comprising a toraminous rotatable/flach' arranged within said drum, and mean for' conveyin@ the coating material 'from the said drum to the top and depositing it upon said shell.v

i 4. ln a coating machine, a drum adapted ,to vcontain a coating material, a cylindrical hopper.

' drum adapted to contain a' coating material,l plates secured to the inner periphery of said'A drum and projecting inwardly therefrom,

foraminous shell rotatably arranged Within to contain a coating materiaha foraminous '1U shell rotatably arranged `within said drum with its axis disposed at an angle to that of said drinn, and means within said drum for conveying the coating material from the bottom of said drum to the top thereof'and 75 depositing itupon said shell.

G. In a coating machine, a rotatable drum adapted to contain a coating material, .a

' oi'aminous shell rotatably arranged' and angularly disposed within said drum, a hop- 3Q per in said drum above said shell,t and means on said drum for conveying the'l coating material from the bottom tothe top and Ito y.

one end thereot'and depositing it in said 7. ln a coating machine@ rotatable drum adapted to contain a. coating material,

means within said. drum for supporting the articles to be coated, and the inner surface of said drinn being provided with pockets disposed at anangle to the axis of said drum. to carry the coating material up-v wardly andy-depositing ther material onto said means.

8. ln a candy coating machine, a rotatable 95,

drum adapted to contain a coating material, plates secured to the inner periphery gli said drum and being disposed at an an` e't'o the axis thereof, and a conveyer pzesingthrough said drum and adapted to carry the 'ar- 100 ticles to be coated.

9. ln a coating machine, a rotatable drum adapted to contain a coating material, plates projecting inwardly from the inner periphery of said'druin and being disposed at an 105 angle to the axis thereof, and a conveyor passing through said drum and 'inclined downwardly. i

l0. In .a coating machine, a rotatable the said plates being inclined fromthe front toward the rear end of said drum, and a conveyer passing centrally through said drum and inclining downwardly from the rear to the front end thereof.

1l. In a coating machine, `a rotatable drum adapted to'contain a coating'material, stationary heads for said drum, a cylindrical foraininous shell rotatably mounted in said heads, and means for carrying the coating material from the bottom to the top of said drum and depositing it upon said shell.

Y 12.v In a coating machinea drum adapt- .125

ed to contain a coating material, a foraminous cylindrical shell rotatably mounted in said drum, a worm in said. shell, and means for ca'frying the coating: material from theV and means for feeding articles to said conbottom to the top and to one 4end of said v'eyer. A l

drum and depositing it upon' said shell. In testimony whereof I aiiix my signature 13. In a coating machine, a drum, a rotary in presence of two Witnesses.

, 5 oonveyer in said drum, the said drum and MURRIT M. JEWETT.

conveyer being adapted to rotate in Qppo- Witnesses: Y 'site directions, means for directingcoating 'W. T. SMITH, material on said conveyor at one end thereof,` JAMES W. SHEA; 

